When not streaming, you should always be downloading from Seedr with a download manager. Browsers are not made for large downloads. They can not properly resume interrupted downloads, and often falsely report broken downloads as finished.
A download manager will effortlessly resume your downloads whenever needed. It will also open multiple connections to better utilise your bandwidth. We recommend FDM.
To have up to 8 concurrent download connections for downloads, and best utilise your connection, you will need to upgrade to premium.